Question

what device management technique is used for processing of different tasks on the same I/O devices?​

Answer 1

Device Management Functions

• Track status of each device (such as tape drives, disk drives, printers, plotters, and terminals).
• Use preset policies to determine which process will get a device and for how long.
• Allocate the devices.
• Deallocate the devices at 2 levels

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Answer 2

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ᴅᴇᴠɪᴄᴇ ᴍᴀɴᴀɢᴇᴍᴇɴᴛ ғᴜɴᴄᴛɪᴏɴs

• ᴛʀᴀᴄᴋ sᴛᴀᴛᴜs ᴏғ ᴇᴀᴄʜ ᴅᴇᴠɪᴄᴇ (sᴜᴄʜ ᴀs ᴛᴀᴘᴇ ᴅʀɪᴠᴇs, ᴅɪsᴋ ᴅʀɪᴠᴇs, ᴘʀɪɴᴛᴇʀs, ᴘʟᴏᴛᴛᴇʀs, ᴀɴᴅ ᴛᴇʀᴍɪɴᴀʟs).
• ᴜsᴇ ᴘʀᴇsᴇᴛ ᴘᴏʟɪᴄɪᴇs ᴛᴏ ᴅᴇᴛᴇʀᴍɪɴᴇ ᴡʜɪᴄʜ ᴘʀᴏᴄᴇss ᴡɪʟʟ ɢᴇᴛ ᴀ ᴅᴇᴠɪᴄᴇ ᴀɴᴅ ғᴏʀ ʜᴏᴡ ʟᴏɴɢ.
• ᴀʟʟᴏᴄᴀᴛᴇ ᴛʜᴇ ᴅᴇᴠɪᴄᴇs.
• ᴅᴇᴀʟʟᴏᴄᴀᴛᴇ ᴛʜᴇ ᴅᴇᴠɪᴄᴇs ᴀᴛ 2 ʟᴇᴠᴇʟs:

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